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The Fifth Domain

Defending Our Country, Our Companies, and Ourselves in the Age of Cyber Threats

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An urgent warning from two bestselling security experts--and a gripping inside look at how governments, firms, and ordinary citizens can confront and contain the tyrants, hackers, and criminals bent on turning the digital realm into a war zone.

"In the battle raging between offense and defense in cyberspace, Clarke and Knake have some important ideas about how we can avoid cyberwar for our country, prevent cybercrime against our companies, and in doing so, reduce resentment, division, and instability at home and abroad."--Bill Clinton


There is much to fear in the dark corners of cyberspace: we have entered an age in which online threats carry real-world consequences. But we do not have to let autocrats and criminals run amok in the digital realm. We now know a great deal about how to make cyberspace far less dangerous--and about how to defend our security, economy, democracy, and privacy from cyber attack.

Our guides to the fifth domain -- the Pentagon's term for cyberspace -- are two of America's top cybersecurity experts, seasoned practitioners who are as familiar with the White House Situation Room as they are with Fortune 500 boardrooms. Richard A. Clarke and Robert K. Knake offer a vivid, engrossing tour of the often unfamiliar terrain of cyberspace, introducing us to the scientists, executives, and public servants who have learned through hard experience how government agencies and private firms can fend off cyber threats. With a focus on solutions over scaremongering, and backed by decades of high-level experience in the White House and the private sector, The Fifth Domain delivers a riveting, agenda-setting insider look at what works in the struggle to avoid cyberwar.
© Rich Riggens
Richard A. Clarke served as a key advisor on intelligence and counterterrorism in the administrations of Presidents Ronald Reagan, George H. W. Bush, and Bill Clinton. In 1998 President Clinton appointed him as the National Coordinator for Security, Infrastructure Protection, and Counterterrorism for the U.S. National Security Council. Since leaving the public sector in 2003, Mr. Clarke has taught at the John F. Kennedy School of Government at Harvard University and consulted for ABC News on political and security issues. He now chairs the Board of Governors of the Middle East Institute. He is the author of seven books, both fiction and nonfiction, including the #1 New York Times bestseller Against All Enemies: Inside America’s War on Terror. View titles by Richard A. Clarke
© Megan Jones
Robert K. Knake is a senior fellow at the Council on Foreign Relations, a senior research scientist at Northeastern University, and an adviser to startups, investment firms, and Fortune 500 companies. Knake served from 2011-15 in the Obama White House as director for cybersecurity policy at the National Security Council. He is the co-author (with Clarke) of the New York Times bestseller Cyber War. View titles by Robert K. Knake
“A sobering but hopeful exploration of defenses against the weaponization of the internet . . . Clarke and Knake, drawing on interviews with experts, explain cybersecurity’s intricacies in a lucid, engaging manner that avoids the alarmism that often surrounds the subject. The result is a fine survey that will interest policy makers, executives, and ordinary readers alike.”—Publishers Weekly
 
“Clarke and Knake, both of whom logged time inside the cybersecurity arms of presidential administrations, have much to say about the ways in which governments and companies have tried to make themselves safe from the legions of hackers out there, from your ordinary black hats to agents of Russia, China, Iran, North Korea, and other entities. . . . The authors counsel reassuringly [that] as companies finally make the transition to more secure systems of transmission, encryption, and data storage, there is hope that the threats of old will one day be a footnote. . . . Largely of interest to policymakers and security experts, though with much for the Wired crowd as well.” —Kirkus Reviews

“In the battle raging between offense and defense in cyberspace, Clarke and Knake have some important ideas about how we can avoid cyberwar for our country, prevent cybercrime against our companies, and in doing so, reduce resentment, division, and instability at home and abroad.”—Bill Clinton
 
“Cyberspace is the battlefield of the future. Our national security is dependent on whether we wake up and recognize the nature of this threat. In The Fifth Domain, Richard Clarke and Robert Knake are issuing a strong wake-up call. As they conclude, ‘what is missing is national consensus, will, and priority setting.’ If we fail to take the necessary steps to defend ourselves, we may lose not just the battle but the war.” —Leon Panetta

“In The Fifth Domain, two of America’s top cybersecurity experts reach a surprising and encouraging conclusion: it is within our power to manage cyber threats. Clarke and Knake offer a wealth of practical and achievable ideas for how the U.S. government, American companies, and private citizens can deter and thwart attacks.”Susan Rice

About

An urgent warning from two bestselling security experts--and a gripping inside look at how governments, firms, and ordinary citizens can confront and contain the tyrants, hackers, and criminals bent on turning the digital realm into a war zone.

"In the battle raging between offense and defense in cyberspace, Clarke and Knake have some important ideas about how we can avoid cyberwar for our country, prevent cybercrime against our companies, and in doing so, reduce resentment, division, and instability at home and abroad."--Bill Clinton


There is much to fear in the dark corners of cyberspace: we have entered an age in which online threats carry real-world consequences. But we do not have to let autocrats and criminals run amok in the digital realm. We now know a great deal about how to make cyberspace far less dangerous--and about how to defend our security, economy, democracy, and privacy from cyber attack.

Our guides to the fifth domain -- the Pentagon's term for cyberspace -- are two of America's top cybersecurity experts, seasoned practitioners who are as familiar with the White House Situation Room as they are with Fortune 500 boardrooms. Richard A. Clarke and Robert K. Knake offer a vivid, engrossing tour of the often unfamiliar terrain of cyberspace, introducing us to the scientists, executives, and public servants who have learned through hard experience how government agencies and private firms can fend off cyber threats. With a focus on solutions over scaremongering, and backed by decades of high-level experience in the White House and the private sector, The Fifth Domain delivers a riveting, agenda-setting insider look at what works in the struggle to avoid cyberwar.

Author

© Rich Riggens
Richard A. Clarke served as a key advisor on intelligence and counterterrorism in the administrations of Presidents Ronald Reagan, George H. W. Bush, and Bill Clinton. In 1998 President Clinton appointed him as the National Coordinator for Security, Infrastructure Protection, and Counterterrorism for the U.S. National Security Council. Since leaving the public sector in 2003, Mr. Clarke has taught at the John F. Kennedy School of Government at Harvard University and consulted for ABC News on political and security issues. He now chairs the Board of Governors of the Middle East Institute. He is the author of seven books, both fiction and nonfiction, including the #1 New York Times bestseller Against All Enemies: Inside America’s War on Terror. View titles by Richard A. Clarke
© Megan Jones
Robert K. Knake is a senior fellow at the Council on Foreign Relations, a senior research scientist at Northeastern University, and an adviser to startups, investment firms, and Fortune 500 companies. Knake served from 2011-15 in the Obama White House as director for cybersecurity policy at the National Security Council. He is the co-author (with Clarke) of the New York Times bestseller Cyber War. View titles by Robert K. Knake

Praise

“A sobering but hopeful exploration of defenses against the weaponization of the internet . . . Clarke and Knake, drawing on interviews with experts, explain cybersecurity’s intricacies in a lucid, engaging manner that avoids the alarmism that often surrounds the subject. The result is a fine survey that will interest policy makers, executives, and ordinary readers alike.”—Publishers Weekly
 
“Clarke and Knake, both of whom logged time inside the cybersecurity arms of presidential administrations, have much to say about the ways in which governments and companies have tried to make themselves safe from the legions of hackers out there, from your ordinary black hats to agents of Russia, China, Iran, North Korea, and other entities. . . . The authors counsel reassuringly [that] as companies finally make the transition to more secure systems of transmission, encryption, and data storage, there is hope that the threats of old will one day be a footnote. . . . Largely of interest to policymakers and security experts, though with much for the Wired crowd as well.” —Kirkus Reviews

“In the battle raging between offense and defense in cyberspace, Clarke and Knake have some important ideas about how we can avoid cyberwar for our country, prevent cybercrime against our companies, and in doing so, reduce resentment, division, and instability at home and abroad.”—Bill Clinton
 
“Cyberspace is the battlefield of the future. Our national security is dependent on whether we wake up and recognize the nature of this threat. In The Fifth Domain, Richard Clarke and Robert Knake are issuing a strong wake-up call. As they conclude, ‘what is missing is national consensus, will, and priority setting.’ If we fail to take the necessary steps to defend ourselves, we may lose not just the battle but the war.” —Leon Panetta

“In The Fifth Domain, two of America’s top cybersecurity experts reach a surprising and encouraging conclusion: it is within our power to manage cyber threats. Clarke and Knake offer a wealth of practical and achievable ideas for how the U.S. government, American companies, and private citizens can deter and thwart attacks.”Susan Rice

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